1. Commonly used as an insult among
teenage boys.
2. To
flubbergust is to place something edible, into a females vagina, have
sexual intercourse with the item in the vagina, and after orgasm, eating the edible materials out of the vagina using your face.
3. A mildly painful, yet rewarding method of "freak sex" exploiting a woman's vagina with foreign items which are later eaten directly our of her by the partner.
Here's a fubberguster situation, where Joe is the flubberguster.
Joe has a cup of apple sauce. He pours it into Jane's vagina.
Joe then penetrates his penis into Jane's vagina, and has
sexual intercourse until orgasm and
ejaculation.
Upon ejaculation, Joe will remove his penis from Jane's vagina, and use his mouth and tongue to
eat the apple sauce out of Jane's vagina.